title: Positive diagnosis of self-medication with homatropine eye drops.
abstract: A 25-year-old man with a variety of unusual ocular symptoms was fully investigated and no abnormality discovered. The suspicion of self-medication with a mydriatic was confirmed when homatropine was isolated in his tears. We describe a method for collecting tears which allowed biochemical confirmation at leisure.
authors.affiliation: National Hospital for Nervous Diseases, Queen Square, London.
authors.forename: A N
authors.initials: AN
authors.lastname: Warrens
authors.forename: M A
authors.initials: MA
authors.lastname: Ron
authors.forename: S
authors.initials: S
authors.lastname: Dawling
mesh_terms: D000328:Adult; D005162:Factitious Disorders / Q000523:psychology*; D006801:Humans; D008297:Male; D010276:Parasympatholytics; D012025:Reflex, Pupillary / Q000187:drug effects*; D012651:Self Medication / Q000523:psychology*; D014326:Tropanes / Q000493:pharmacokinetics / Q000506:poisoning*; D014786:Vision Disorders / Q000139:chemically induced*
chemical_list: D010276:Parasympatholytics; D014326:Tropanes; C100236:homatropine